Attachment for window-sashes



UNITED STATES PATENT OFFICE.

JULIUS DE LONG, OF BROOKLYN, NEIV YORK.

ATTACHMENT FOR WINDOW-SASHES.

SPECIFICATION forming. part of Letters Patent No. 427,977, dated May 13, 1890.

Application filed February 24, 1890. Serial No. 341,447. (No model.)

To all whom it may concern.-

Be it known that I, JULIUS DE LONG, of Brooklyn, in the county of Kings and State of New York, have invented a new and useful Improvement in Attachments for \Vindow- Sashes, of which the following is a specification.

My invention relates especially to attachments for window-sashes, whereby the lower sash may be raised a sufficient distance from the sill to permit a free passage of air over the top between the meeting-rails of the upper and lower sash for the purpose of securing ventilation for sleeping-rooms or other apartments, while at the same time the space below the lower rail of the sash will be closed, preventing the ingress of air thercbeneath.

To attain the desired end my invention consists, essentially, in one or more leaves or plates adjustably connected to the lower rail of a window-sash, so arranged that they may be carried upward with the sash when the window is opened or permitted to slide downward upon the rail and upon each other, closing the space beneath said rail when it is desired to raise the sash sufficiently to permit a free ingress of fresh air over the top rail, all of which will be hereinafter first fully described, and then pointed out in the claims.

In the drawings, Figure 1 is an interior view of a window-sash wherewith my device is employed, showing the sash as shut down. Fig. 2 is a like view illustrating the sash as raised. Fig. 3 is a sectional view at line 00 0c of Fig. 1.

Like letters of reference, whenever they occur, indicate corresponding parts in all the figures.

In the drawings I have shown but two slidable leaves for convenience in illustration; but it is obvious that where the lower sashrail is of considerable width one such leaf would be sufficient, whereas if it is found desirable any number might be used without. departing from the spirit of my invention. I have also shown the leaves as located upon the inner face of the sash-rail; but, if desired, these leaves might be concealed within the rail and placed in a longitudinal groove or slot therein.

which the set-screws E extend.

A is a window-frame; B, the lower sash, and O the upper sash.

D is a screw-threaded piece of metal secured in the sash B at each side and arranged to receive thumb-screws E.

F is a plate or leaf of metal or wood extending across the sash. For clearness in illustration I have shown the plate as extending to the stops at the side of the sash; but it may pass behind such stops or press closely against them. In plate F are slots H, through Beneath plate F is a second plate G, also slotted at I, in order to permitit to slide up behind plate F.

K K are rivets secured near the lower edge of plate F and projecting through slots L in plate G, permitting the same to drop to the position indicated in Fig. 2 when the sash is raised.

\Vhen constructed and arranged in accordance with the foregoing description, my attachment will be found admirably adapted to the uses and purposes for which it is intended. Vhen not in use, by tightening the thumb-screws the plates are secured to the sash-rail, and may travel up and down therewith.

lVhen it is desired to admit air to an apartment having windows provided with my attachment, the thumb-screws are loosened, and when the sash is raised the lower edge of the plate orplates will rest upon the sill, preventing the passage of air beneath the sash, while it may freely pass over the top, throwing the current upward and preventing drafts at the bottom of the window. I

I have illustrated a simple method of securing the adjustable leaves in place and to each other; but this mechanical arrangement may be varied as desired.

Having now fully described my invention, what I claim as new therein, and desire to secure by Letters Patent, is

1. The combination, with the lower rail of a window-sash, of one or more adjustable leaves attached thereto and arranged to move therewith, substantially as and for the uses and purposes shown and described.

2. The combination, with the lower rail of a window-sash, of one or more leaves arranged to slide downward when the sash is raised, or the sash, substantially as shown and deto be carried upward therewith, substantially scribed. as shown and described. w

3. The combination, with the lower rail of JULIUS LONG 5 awindmvsaslnof one or more movable leaves adjustably secured thereto by a thumb-screw or its equivalent and arranged to travel with \Vitnesses:

A. M. PIERCE, GERTR'UDE WARD. 

